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Finding the Fourth Proportional to 539,447.20, 807,615.60 and 539,447.20

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Solution

The fourth proportional to 539,447.20, 807,615.60 and 539,447.20 is: 807,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,447.20 : 807,615.60 = 539,447.20 : x
  2. Step 2: Convert to fraction form
    539,447.20/807,615.60 = 539,447.20/x
  3. Step 3: Cross multiply
    539,447.20x = 807,615.60 × 539,447.20
  4. Step 4: Simplify right side
    539,447.20x = 435,665,974,096.32
  5. Step 5: Solve for x
    x = 435,665,974,096.32/539,447.20
  6. Step 6: Final answer
    x = 807,615.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.